A man accused of murdering a trucking-company boss in Adelaide's north tells a jury he was acting in self-defence, striking the victim with a two-kilogram spanner, alleging the victim had first hit him with the same weapon.

Nestled on hot red sand 563 kilometres from Adelaide, Roxby Downs officially opened in November 1988 to service BHP's Olympic Dam mine. There are currently 300 jobs available in the town, and plans are being made for the next 100 years.

STI rates could rise in some of Adelaide's most disadvantaged communities because of a decision to close community sexual health clinics amidst a syphilis outbreak, a public health organisation is warning.

Sarah Larcombe is only 26, but she has had more surgery than most will in a lifetime — including having part of her anatomy removed. But that doesn't stop strangers judging and confronting her. Now she's calling for change.

The man who could be Australia's longest-serving aviation engineer celebrates his 95th birthday, after retrieving or assisting some 480 crashed or stranded aeroplanes from across Australia over a career that spanned 75 years.